"Semiconductor maker Nvidia Corp. on Monday said it missed the deadline to file its second-quarter financial report after a review of its historical stock options practices turned up errors.

The Santa Clara, Calif.-based company expects to book additional costs related to past grants, according to a filing with the Securities and Exchange Commission. Nvidia said the additional stock-based compensation expenses will not affect its cash position or reported revenue for the recent quarter or previous periods.

Nvidia also said it has voluntarily contacted the SEC staff to inform them about the ongoing review and the SEC recently requested certain information relating to its historical stock option practices."